Emry, Lurker of the Loch (ELD)

This spell costs {1} less to cast for each artifact you control.

When Emry, Lurker of the Loch enters the battlefield, put the top four cards of your library into your graveyard.

{T}: Choose target artifact card in your graveyard. You may cast that card this turn. (You still pay its costs. Timing rules still apply.)